Blood And Iron:

Before 1871, Germany was not a nation but an idea. Its founder, Otto von Bismarck, had a formidable task at hand. How would he bring thirty-nine individual states under the yoke of a single Kaiser, convincing proud Prussians, Bavarians and Rhinelanders to become Germans? Once united, could the young European nation wield enough power to rival the empires of Britain and France – all without destroying itself in the process? In a unique study of five decades that changed the course of modern history, the story of the German Empire is told from its violent beginnings to its calamitous defeat in the First World War.